package com.cdqidi.core.weixinmanager.service;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.cdqidi.constant.ConstantDto;
import com.cdqidi.core.weixinmanager.domain.TemplateMsgDetailedDTO;
import com.cdqidi.core.weixinmanager.mapper.TemplateMsgDetailedMapper;
import com.cdqidi.core.weixinmanager.model.TemplateMsgDetailed;
import com.cdqidi.db.BaseService;
import com.cdqidi.dto.CacheKey;
import com.cdqidi.excel.ExcelExport;
import com.cdqidi.excel.util.ExportPage;
import com.cdqidi.exception.ApiException;
import com.cdqidi.util.RedisTemplateUtil;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
import java.util.Optional;

import static java.util.stream.Collectors.toList;

/**
 * 公众号模板消息
 *
 * @author sjk
 */
@RequiredArgsConstructor
@Service
@Slf4j
public class TemplateMsgDetailedService extends BaseService<TemplateMsgDetailedMapper, TemplateMsgDetailed> {

    private static final String PREFIX_ID = "sys_wx_template_msg_detailed_id_{0}";
    private static final String PREFIX_TEMPLATE_SHORT_ID = "sys_wx_template_msg_detailed_templateShortId_{0}_appId_{1}";

    private final RedisTemplateUtil<TemplateMsgDetailed> redisTemplateUtil;
    private final OrgWxConfigService orgWxConfigService;
    @Resource
    private HttpServletResponse response;

    /**
     * 保存
     *
     * @param dto 页面对象
     * @return 页面对象
     */
    @Transactional(rollbackFor = Exception.class)
    public TemplateMsgDetailedDTO save(TemplateMsgDetailedDTO dto) {
        final TemplateMsgDetailed model = dtoToModel(dto);
        try {
            if (super.save(model)) {
                return modelToDto(model);
            }
            throw new ApiException("添加失败");
        } finally {
            clearCache(model);
            model.freeData();
        }
    }

    /**
     * 修改
     *
     * @param dto 页面对象
     * @return 页面对象
     */
    @Transactional(rollbackFor = Exception.class)
    public TemplateMsgDetailedDTO update(TemplateMsgDetailedDTO dto) {
        final TemplateMsgDetailed historyModel = Optional.ofNullable(getById(dto.getId())).orElseThrow(() -> new ApiException("ID不存在,不能更新"));
        final TemplateMsgDetailed model = dtoToModel(dto);
        try {
            if (!super.updateById(model)) {
                throw new ApiException("更新失败");
            }

        } finally {
            clearCache(historyModel);
            historyModel.freeData();
            model.freeData();
        }
        return getByIdDto(dto.getId());
    }

    /**
     * 删除，单个
     *
     * @param id 主键
     */
    @Transactional(rollbackFor = Exception.class)
    public void removeById(String id) {
        final TemplateMsgDetailed model = Optional.ofNullable(getById(id)).orElseThrow(() -> new ApiException("数据不存在,不能删除"));
        try {
            if (!super.removeById(id)) {
                throw new ApiException("删除失败");
            }
        } finally {
            clearCache(model);
            model.freeData();
        }
    }

    /**
     * 根据传入对象构建查询参数，判断是否存在
     *
     * @param dto 参数
     * @return 存在为true
     */
    @Transactional(readOnly = true)
    public Boolean isExists(TemplateMsgDetailedDTO dto) {
        final QueryWrapper<TemplateMsgDetailed> queryWrapper = createQueryWrapper(dto);
        final boolean exists = super.count(queryWrapper) > 0;
        queryWrapper.clear();
        return exists;
    }

    /**
     * 根据主键判断数据是否存在
     *
     * @param id 主键
     * @return 存在为true
     */
    @Transactional(readOnly = true)
    public Boolean isExistsById(String id) {
        boolean exists = false;
        if (StringUtils.hasLength(id)) {
            final TemplateMsgDetailed model = getById(id);
            exists = (null != model);
            if (exists) {
                model.freeData();
            }
        }
        return exists;
    }

    /**
     * 根据主键获取数据
     *
     * @param id 主键
     * @return 单条记录
     */
    @Transactional(readOnly = true)
    public TemplateMsgDetailed getById(String id) {
        final String key = RedisTemplateUtil.getRedisCacheKey(PREFIX_ID, id);
        return redisTemplateUtil.get(new CacheKey().setKey(key).setTimeout(ConstantDto.REDIS_TIME_OUT_DAY), () -> super.getById(id), TemplateMsgDetailed.class);
    }

    /**
     * 根据主键获取数据
     *
     * @param id 主键
     * @return 单条记录，转换成页面对象
     */
    @Transactional(readOnly = true)
    public TemplateMsgDetailedDTO getByIdDto(String id) {
        return Optional.ofNullable(getById(id)).map(this::modelToDto).orElse(null);
    }

    /**
     * 根据条件查询单条数据
     *
     * @param dto 查询参数
     * @return 单条记录
     */
    @Transactional(readOnly = true)
    public TemplateMsgDetailed getOne(TemplateMsgDetailedDTO dto) {
        final QueryWrapper<TemplateMsgDetailed> queryWrapper = createQueryWrapper(dto);
        TemplateMsgDetailed model = super.getOne(queryWrapper);
        queryWrapper.clear();
        return model;
    }

    /**
     * 根据条件查询单条数据
     *
     * @param dto 查询参数
     * @return 单条记录，转换成页面对象
     */
    @Transactional(readOnly = true)
    public TemplateMsgDetailedDTO getOneDto(TemplateMsgDetailedDTO dto) {
        return Optional.ofNullable(getOne(dto)).map(this::modelToDto).orElse(null);
    }

    @Transactional(readOnly = true)
    public TemplateMsgDetailed getTemplate(String templateShortId, String appId) {
        String key = RedisTemplateUtil.getRedisCacheKey(PREFIX_TEMPLATE_SHORT_ID, templateShortId, appId);
        return redisTemplateUtil.get(new CacheKey().setKey(key), () -> {
            QueryWrapper<TemplateMsgDetailed> queryWrapper = new QueryWrapper<>();
            queryWrapper.eq("template_id_short", templateShortId);
            queryWrapper.eq("appid", appId);
            TemplateMsgDetailed templateMsgDetailed = super.getOne(queryWrapper, false);
            queryWrapper.clear();
            return templateMsgDetailed;
        }, TemplateMsgDetailed.class);
    }

    /**
     * 根据条件查询列表数据
     *
     * @param dto 查询参数
     * @return 列表数据
     */
    @Transactional(readOnly = true)
    public List<TemplateMsgDetailed> getList(TemplateMsgDetailedDTO dto) {
        final QueryWrapper<TemplateMsgDetailed> queryWrapper = createQueryWrapper(dto);
        final List<TemplateMsgDetailed> list = super.list(queryWrapper);
        queryWrapper.clear();
        return list;
    }

    /**
     * 根据条件查询列表数据
     *
     * @param dto 查询参数
     * @return 列表数据，转换成页面对象
     */
    @Transactional(readOnly = true)
    public List<TemplateMsgDetailedDTO> getListDto(TemplateMsgDetailedDTO dto) {
        return modelToDtoList(getList(dto));
    }

    /**
     * 分页数据
     *
     * @param page 分页对象
     * @param dto  查询参数
     * @return 分页信息
     */
    @Transactional(readOnly = true)
    public IPage<TemplateMsgDetailedDTO> page(Page<TemplateMsgDetailed> page, TemplateMsgDetailedDTO dto) {
        final QueryWrapper<TemplateMsgDetailed> queryWrapper = createQueryWrapper(dto, "tem.");
        final IPage<TemplateMsgDetailedDTO> iPage = baseMapper.page(page, queryWrapper);
        queryWrapper.clear();
        return iPage;
    }

    /**
     * 导出Excel
     *
     * @param query 查询条件
     */
    @Transactional(readOnly = true)
    public void export(TemplateMsgDetailedDTO query) {
        final ExportPage<TemplateMsgDetailed, TemplateMsgDetailedDTO> exportPage = new ExportPage<>();
        try {
            final List<TemplateMsgDetailedDTO> list = exportPage.getAllForPage(page -> page(page, query).getRecords());
            try {
                ExcelExport.downloadExcel(response, TemplateMsgDetailedDTO.class, () -> list);
            } catch (IOException e) {
                log.error("导出失败", e);
                throw new ApiException("导出失败");
            }
        } finally {
            exportPage.freeData();
        }

    }


    /**
     * 清空缓存
     *
     * @param model 数据库对象
     */
    public void clearCache(TemplateMsgDetailed model) {
        if (null == model) {
            return;
        }
        redisTemplateUtil.deleteByKey(RedisTemplateUtil.getRedisCacheKey(PREFIX_ID, model.getId()));
        redisTemplateUtil.deleteByKey(RedisTemplateUtil.getRedisCacheKey(PREFIX_TEMPLATE_SHORT_ID, model.getTemplateIdShort(), model.getAppId()));
    }

    /**
     * 数据库对象转页面对象
     *
     * @param model 数据库对象
     * @return 页面对象
     */
    public TemplateMsgDetailedDTO modelToDto(TemplateMsgDetailed model) {
        if (null == model) {
            return null;
        }
        final TemplateMsgDetailedDTO dto = new TemplateMsgDetailedDTO();
        dto.setId(model.getId());
        dto.setTemplateId(model.getTemplateId());
        dto.setTemplateIdShort(model.getTemplateIdShort());
        dto.setTemplateTitle(model.getTemplateTitle());
        dto.setTemplateContent(model.getTemplateContent());
        dto.setAppId(model.getAppId());
        buildDisplay(dto);
        return dto;
    }

    /**
     * 页面对象转数据库对象
     *
     * @param dto 页面对象
     * @return 数据库对象
     */
    public TemplateMsgDetailed dtoToModel(TemplateMsgDetailedDTO dto) {
        if (null == dto) {
            return null;
        }
        final TemplateMsgDetailed model = new TemplateMsgDetailed();
        model.setId(dto.getId());
        model.setTemplateId(dto.getTemplateId());
        model.setTemplateIdShort(dto.getTemplateIdShort());
        model.setTemplateTitle(dto.getTemplateTitle());
        model.setTemplateContent(dto.getTemplateContent());
        model.setAppId(dto.getAppId());
        return model;
    }

    /**
     * 码表转换
     *
     * @param dto 页面对象
     */
    public void buildDisplay(TemplateMsgDetailedDTO dto) {
        dto.setAppIdDisplay(orgWxConfigService.idToDisplay(dto.getAppId()));
    }

    /**
     * 数据库对象转页面对象
     *
     * @param list 数据库对象
     * @return 页面对象
     */
    public List<TemplateMsgDetailedDTO> modelToDtoList(List<TemplateMsgDetailed> list) {
        return Optional.ofNullable(list).orElse(Collections.emptyList()).stream().map(this::modelToDto).collect(toList());
    }

    /**
     * 页面对象转数据库对象
     *
     * @param list 页面对象
     * @return 数据库对象
     */
    public List<TemplateMsgDetailed> dtoToModelList(List<TemplateMsgDetailedDTO> list) {
        return Optional.ofNullable(list).orElse(Collections.emptyList()).stream().map(this::dtoToModel).collect(toList());
    }

    /**
     * 拼装查询参数，除了主键的其他字段会自动加入进来
     *
     * @param dto 查询参数，不为空的属性会被自动加入
     */
    public QueryWrapper<TemplateMsgDetailed> createQueryWrapper(TemplateMsgDetailedDTO dto) {
        return createQueryWrapper(dto, "");
    }

    /**
     * 拼装查询参数，除了主键的其他字段会自动加入进来
     *
     * @param dto        查询参数，不为空的属性会被自动加入
     * @param tableAlias 表别名
     */
    public QueryWrapper<TemplateMsgDetailed> createQueryWrapper(TemplateMsgDetailedDTO dto, String tableAlias) {
        final QueryWrapper<TemplateMsgDetailed> queryWrapper = new QueryWrapper<>();
        if (null != dto) {
            if (StringUtils.hasLength(tableAlias) && tableAlias.charAt(tableAlias.length() - 1) != '.') {
                tableAlias += ".";
            }
            if (StringUtils.hasLength(dto.getTemplateId())) {
                queryWrapper.eq(tableAlias + "template_id", dto.getTemplateId());
            }
            if (StringUtils.hasLength(dto.getTemplateIdShort())) {
                queryWrapper.eq(tableAlias + "template_id_short", dto.getTemplateIdShort());
            }
            if (StringUtils.hasLength(dto.getTemplateTitle())) {
                queryWrapper.like(tableAlias + "template_title", dto.getTemplateTitle());
            }
            if (StringUtils.hasLength(dto.getAppId())) {
                queryWrapper.eq(tableAlias + "appid", dto.getAppId());
            }
        }
        return queryWrapper;
    }
}